Alert archive / Oklahoma / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 4, NWS Shreveport, LA

January 2, 2000McCurtain County, Oklahoma

NWS Shreveport, LA issued this severe thunderstorm warning at Jan 2, 2000, 11:24 AM CST for McCurtain County, Oklahoma. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jan 2, 2000, 11:24 AM CST (17:24 UTC)
Expired
Jan 2, 2000, 12:25 PM CST
In force
61 min
Issued by
NWS Shreveport, LA
Area
Whole counties

County McCurtain County, OK

The radar

The Western Arkansas radar (KSRX), 136 km from the middle of the area, began a volume at 17:26 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Shreveport, LA (KSHV), launched 12:00Z, 5.4 hours before the alert went out and 205 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Shreveport, LA at 12:00Z on 2000-01-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 91 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Shreveport, LA at 12:00Z on 2000-01-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 258 square meters per square second.1939587897117Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
91 J/kg
Mixed-layer CIN
-289 J/kg
Mixed-layer LCL
710 m above ground
0-6 km bulk shear
48 kt
0-1 km storm-relative helicity
258 m²/s²
0-3 km storm-relative helicity
340 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Shreveport, LA wrote its last area forecast discussion before this severe thunderstorm warning went out at Jan 2, 10:30 AM CST, 54 minutes earlier.

Area forecast discussion, Jan 2, 10:30 AM CST, 54 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
1030 AM CST SUN JAN 02 2000

MORNING SURFACE ANALYSIS SHOWED PRESSURE GRADIENT SLACKING OFF
SOMEWHAT OVER WESTERN PORTIONS OF NORTHEAST TEXAS AND SOUTHEAST
OKLAHOMA THUS WILL ADJUST WIND FORECAST DOWN THESE AREAS IN UPDATE.
FAST MOVING SHOWERS AND ISOLATED TSTMS MOVING INTO NW COUNTIES
SHOULD BEGIN TO WEAKEN AS THEY MOVE RAPIDLY NORTHEAST. THUS WILL NOT
ADJUST POP MUCH FOR THE AFTERN,OON. RECORD HIGH TEMPS STILL A
POSSIBLE AS CLOUDS BREAKUP THIS AFTERNOON...THUS NO CHANGES TO THE
PREDICTED HIGHS.

.SHV...NONE.

In the hours before

Special weather statement, Jan 2, 10:00 AM CST, 1 hour 24 minutes before
ARZ050-051-059>061-070>073-LAZ001>006-010>014-017>022-OKZ077-TXZ096-
097-108>112-124>126-136>138-149>153-165>167-021700-

THUNDERSTORM OUTLOOK
NATIONAL WEATHER SERVICE SHREVEPORT LA
1000 AM CST SUN JAN 02 2000

MOISTURE WAS INCREASING ACROSS THE FOUR STATE REGION IN ADVANCE OF A
COLD FRONT. THE ATMOSPHERE IS ALSO EXPECTED TO BECOME INCREASINGLY
UNSTABLE THIS AFTERNOON WITH A GOOD CHANCE FOR THUNDERSTORM
DEVELOPMENT. A FEW STORMS MAY BECOME SEVERE BY LATE AFTERNOON AND
TONIGHT...MAINLY ACROSS THE NORTHERN HALF OF THE FOUR STATE REGION.
IF SEVERE STORMS DO DEVELOP... DAMAGING WIND WILL BE THE MAIN
THREAT. HOWEVER SOME HAIL COULD OCCUR IN THE STRONGEST STORMS.

ACTIVATION OF STORM SPOTTER NETWORKS...HAM RADIO OPERATORS...AND
EMERGENCY MANAGEMENT PERSONNEL MAY BE REQUIRED LATE THIS AFTERNOON
THROUGH TONIGHT.

Nearby

Severe Thunderstorm Warnings in Oklahoma, 2000Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.